Home / 941,945.60-1,303,307.88-821,338.40

Finding the Fourth Proportional to 941,945.60, 1,303,307.88 and 821,338.40

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Solution

The fourth proportional to 941,945.60, 1,303,307.88 and 821,338.40 is: 1,136,431.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,945.60 : 1,303,307.88 = 821,338.40 : x
  2. Step 2: Convert to fraction form
    941,945.60/1,303,307.88 = 821,338.40/x
  3. Step 3: Cross multiply
    941,945.60x = 1,303,307.88 × 821,338.40
  4. Step 4: Simplify right side
    941,945.60x = 1,070,456,808,866.59
  5. Step 5: Solve for x
    x = 1,070,456,808,866.59/941,945.60
  6. Step 6: Final answer
    x = 1,136,431.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.